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Citrobacter diversus ULA27 produces two forms of a chromosomal beta-lactamase.
Oliva B, Marinucci MC, Amicosante G, Oratore A, Bennett PM. Oliva B, et al. Among authors: oratore a. J Antimicrob Chemother. 1987 Jul;20(1):23-35. doi: 10.1093/jac/20.1.23. J Antimicrob Chemother. 1987. PMID: 3497915
A multi-resistant clinical isolate of Citrobacter diversus, particularly resistant to penicillins and cephalosporins, has been studied. ...SDS-PAGE analysis indicated a single protein responsible for both forms. The strain possessed a single plasmid, as revea
A multi-resistant clinical isolate of Citrobacter diversus, particularly resistant to penicillins and cephalosporins, has been studie
Fractionation and characterization of two beta-lactamases in Citrobacter diversus ULA-27 strain by chromatofocusing.
Amicosante G, Marinucci MC, Franceschini N, Tizzani MI, Oliva B, Oratore A. Amicosante G, et al. Among authors: oratore a. J Chromatogr. 1987 Aug 21;403:366-72. doi: 10.1016/s0021-9673(00)96379-9. J Chromatogr. 1987. PMID: 3500180 No abstract available.
Beta-lactamase activity of Mycobacterium fortuitum.
Fattorini L, Amicosante G, Oliva B, Oratore A, Orefici G. Fattorini L, et al. Among authors: oratore a. Chemioterapia. 1987 Jun;6(2 Suppl):204-6. Chemioterapia. 1987. PMID: 3509935 No abstract available.
Interactions of biapenem with active-site serine and metallo-beta-lactamases.
Felici A, Perilli M, Segatore B, Franceschini N, Setacci D, Oratore A, Stefani S, Galleni M, Amicosante G. Felici A, et al. Among authors: oratore a. Antimicrob Agents Chemother. 1995 Jun;39(6):1300-5. doi: 10.1128/aac.39.6.1300. Antimicrob Agents Chemother. 1995. PMID: 7574520 Free PMC article.
Biapenem, formerly LJC 10,627 or L-627, a carbapenem antibiotic, was studied in its interactions with 12 beta-lactamases belonging to the four molecular classes proposed by R. ...Biapenem was readily inactivated by metallo-beta-lactamases but behaved as a transient …
Biapenem, formerly LJC 10,627 or L-627, a carbapenem antibiotic, was studied in its interactions with 12 beta-lactamases belonging to …
Use of the chromosomal class A beta-lactamase of Mycobacterium fortuitum D316 to study potentially poor substrates and inhibitory beta-lactam compounds.
Galleni M, Franceschini N, Quinting B, Fattorini L, Orefici G, Oratore A, Frère JM, Amicosante G. Galleni M, et al. Among authors: oratore a. Antimicrob Agents Chemother. 1994 Jul;38(7):1608-14. doi: 10.1128/aac.38.7.1608. Antimicrob Agents Chemother. 1994. PMID: 7979294 Free PMC article.
Citrobacter diversus ULA-27 beta-lactamases. Improved purification and general properties.
Amicosante G, Oratore A, Franceschini N, Maccarrone M, Strom R, Galleni M, Frère JM. Amicosante G, et al. Among authors: oratore a. Biochem J. 1988 Sep 15;254(3):885-90. doi: 10.1042/bj2540885. Biochem J. 1988. PMID: 3264152 Free PMC article.
Chromosome-encoded beta-lactamases of Citrobacter diversus. Interaction with beta-iodopenicillanate and labelling of the active site.
Amicosante G, Oratore A, Joris B, Galleni M, Frère JM, Van Beeumen J. Amicosante G, et al. Among authors: oratore a. Biochem J. 1988 Sep 15;254(3):891-3. doi: 10.1042/bj2540891. Biochem J. 1988. PMID: 2848500 Free PMC article.
Both forms of the chromosome-encoded beta-lactamase of Citrobacter diversus react with beta-iodopenicillanate at a rate characteristic of class A beta-lactamases. ...The sequence of the peptide obtained after trypsin hydrolysis is identical with that of a pep …
Both forms of the chromosome-encoded beta-lactamase of Citrobacter diversus react with beta-iodopenicillanate at a rate characteristi …
Characterization of a new TEM-derived beta-lactamase produced in a Serratia marcescens strain.
Perilli M, Felici A, Franceschini N, De Santis A, Pagani L, Luzzaro F, Oratore A, Rossolini GM, Knox JR, Amicosante G. Perilli M, et al. Among authors: oratore a. Antimicrob Agents Chemother. 1997 Nov;41(11):2374-82. doi: 10.1128/AAC.41.11.2374. Antimicrob Agents Chemother. 1997. PMID: 9371336 Free PMC article.
A natural TEM variant beta-lactamase was isolated from an epidemic strain of Serratia marcescens. Nucleotide gene sequencing revealed multiple point mutations located in the 42-to-44 tripeptide and positions 145 to 146, 178, and 238. In addition, a glutamic acid 212
A natural TEM variant beta-lactamase was isolated from an epidemic strain of Serratia marcescens. Nucleotide gene sequencing revealed
Sensitivity of Aeromonas hydrophila carbapenemase to delta3-cephems: comparative study with other metallo-beta-lactamases.
Felici A, Perilli M, Franceschini N, Rossolini GM, Galleni M, Frere JM, Oratore A, Amicosante G. Felici A, et al. Among authors: oratore a. Antimicrob Agents Chemother. 1997 Apr;41(4):866-8. doi: 10.1128/AAC.41.4.866. Antimicrob Agents Chemother. 1997. PMID: 9087509 Free PMC article.
Moreover, RO 09-1428, a catechol-cephalosporin, was not recognized by the A. hydrophila enzyme. Panipenem, cephalosporin C, cephalosporin C-gamma-lactone, and loracarbef were substrates for the three studied beta-lactamases....
Moreover, RO 09-1428, a catechol-cephalosporin, was not recognized by the A. hydrophila enzyme. Panipenem, cephalosporin C, ce …
Characterization of the chromosomal cephalosporinases produced by Acinetobacter lwoffii and Acinetobacter baumannii clinical isolates.
Perilli M, Felici A, Oratore A, Cornaglia G, Bonfiglio G, Rossolini GM, Amicosante G. Perilli M, et al. Among authors: oratore a. Antimicrob Agents Chemother. 1996 Mar;40(3):715-9. doi: 10.1128/AAC.40.3.715. Antimicrob Agents Chemother. 1996. PMID: 8851599 Free PMC article.
Carbenicillin was a substrate for the beta-lactamase from A. lwoffii ULA-501, whereas it acted as a transient inactivator of the enzymes produced by the two A. baumannii strains. Clavulanic acid was unable to inactivate the three beta-lactamases, where …
Carbenicillin was a substrate for the beta-lactamase from A. lwoffii ULA-501, whereas it acted as a transient inactivat …
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